OFFSET
1,2
COMMENTS
log(a(n+1))/log(a(n)) -> 1+sqrt(2). The 8th term has 59 digits, while the 9th term has 141 digits.
sum(n>0, a(n)/a(n+1) ) = 1/2; the ratio of the terms a(n+1)/a(n), for n>1, form the convergents of the continued fraction series described by A081088; thus a(n+1) = A081088(n)*a(n) + a(n-1), for n>1. - Paul D. Hanna, Mar 05 2003
FORMULA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Hans Havermann and Paul D. Hanna, Mar 05 2003
STATUS
approved